Federalized police force ... interesting point.
Actually Nixon tried to create such a thing back in his day. He created the Federal Protective Service to over the federal buildings and leased properties throughout the country as an answer to having one jurisdictional force to deal federally / equally with all the Vietnam-era demonstrations going on back then. Theoretically, these cops were to have expanded through the years to include traffic enforcement on the federal interstates (obviously to collect fines and other revenues for the federal guvmint), across the board deputization in multiple jurisdictions for national emergencies, etc., but this was viewed as unconstitutional. Clinton later tried to get rid of FPS (under GSA) stating they were unnecessary duplication of the local police. The Oklahoma City bombing stopped this from happening. The FPS still exists but is now under Homeland Security. Until presently they are reclassified as "inspectors" with law enforcement powers. Along with FEMA, this agency can be changed very easily.
I think the Anointed One has picked up on this original Nixon idea somehow and is trying to run with it. If he can nationalize the police and place them all under his control he will be able to dominate all peacekeeping efforts. We can only imagine how this will play out in the various courts. After what the SCOTUS has just handed us recently, this is more than a nightmare.